Engine mounting



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Sept. 13, 1955 R. WALSH 2,717,746

ENGINE MOUNTING Original Filed Sept. 2, 1949 I5 Sheets-Sheet 5 UnitedStates Patent Office Z,7l7,74b Patented Sept. 13, 1955 ENGINE MOUNTINGRobert Walsh, New York, N. Y., assignor to ACF Industries, Incorporated,a corporation of New Jersey Original application September 2, 1949,Serial' No. 113,727. Divided and this application February 20,1951,.Serial No. 211,962

4 claims. (c1. 24S- 10) This invention relates to railway locomotivesand more particularly to mountings for the power units in locomotives.This application is a division of my copending application Serial No.113,727 filed September 2, 1949.

An object of the invention resides in completely damping the engine of alocomotive so that it is free to vibrate without transmitting the forcesgenerated thereby to the framing and remote accessories.

A further object of the invention is to mount and arrange traction powerunits, each consisting of a Diesel engine, generator and. accessories,so that they can be readily moved into and out of the locomotive.

These and other objects of the invention will be apparent to thoseskilled in the art fromv a study of the following description andaccompanying drawings, in which:

Fig. l is a plan view of the` locomotive underframe.

Fig. 2 isy a rear endview of the underframe.

Fig; 3- is a front end Viewl of the underframe.

Fig. 4 is a top` plan viewof one of the mountings for the traction powerunits.

Fig. 5 is a side'y elevational view' of the mounting shown in Fig. 4.

Fig. 6 is a sectional view of the mountings shown in Figs. 4 and 5 takenon line 6 6V of Fig. 5.

Fig. 7 is a plan view of the mountings for one of the traction powerunits, associated with the center sil-ls, the unit being shown in dottedlines.

The reference numeral 2 indicates the lunderframe of the locomotivewhich includes U-shaped center sill members 6 extending the full lengththereof, angle side sills 8, rear channel sill 10 and curved frontchannel sill 12. The rear legs of the front sill are welded to theforward ends of the side sills, the rear ends of the side sills arewelded to the rear sill and the ends of the center sills are welded tothe front and rear sills. Similar bolster structures 14 and 16 extendtransversely of the underframe and are secured to the side frames andcenter sill members. Cross bearer 18 extends transversely 0f theunderframe, centrally between the holsters, and is secured to the sidesills and underframe members. Forward cross bearer structures 20 and 22extend transversely of and are secured to the center sill members andthe rear legs of the front sill 12 in advance of forward bolster 16. Thebolster structures 14 and 16, cross bearer 18 and cross bearerstructures 20, 22 have been fully described in my aforesaid copendingapplication as filed, and hence it is deemed unnecessary to describe thesame in detail here.

Two similar traction power plants A (only one of which is indicated inFigs. 6, 7) are arranged in longitudinal alignment on the longitudinalcenter line of the locomotive power compartment. The space bounded bythe center sill members 6 and bolsters 14 and 16 is divided by the crossbearer 18 providing two openings of suicient length and width so thatthe power plants A can be mounted therein to place the center of gravityclose to the underframe and to allow the power plants to be bodily movedvertically from beneath the underframe for mounting or dismounting. Themain engine castings are formed with spaced side legs 82, see Fig. 6, oneach side and similar mountings M for the legs are detachably secured onthe center sill members. The mountings are detachably secured so thatthey can be shifted longitudinally on the center sill members to allowclearance for the engine legs when the engine is being mounted upon orremoved from the underframe. Each mounting includes a floating carrierplate 84 formed with an outwardly extending top flange 86 and abutmentanges 88 and 88 depending fromv the ends of the topv flange. Enginebearer bracket 90 is weldedto carrier plate 84 for receiving an engineleg 82 which is securedv thereon by bolt 92. End plate 94 is welded tothe plate 84. and the end of bracket 90 remote from end flange 88.Anchor mounting plate 96 is in spaced parallel relation with. thevertically extending floating carrier plate 84 and has a bearing plate98 welded thereto in relation to rest on the center sill member to whichit is detachably secured by bolts 100. Resilient units are arrangedbetween plates 84 and 96 and each unit consists of sheet rubber 102bonded to metal plates 104. Such resilient units are secured to thecarrier and mounting plates by short bolts 106 passing through plate 84and one of the plates 104 and bolts 107 passing through plate 96 and theother plate 104. The rubber is bonded to the inner end of bolts 106 and107. Spacer strips 108 are welded to the mounting anchor plate 96 andbear against the center sill member. Spaced guide rests 110 project fromunder the center sill member 6 and are secured thereto by bolts 112, thepurpose of the guide rests being to receive plate 96- and prevent itsdisplacement from the center sill while shifting' and when bolts 100 areremoved.

As previously stated, carrier plate 84 is supported to float and itsvertical movement is restricted by snubber means consisting of an anglemember 114 welded to the plate 96 above the center sill member, bolts116 extending through the angle member and the carrier plate top flange86Vand plates` 117. The bolts 116 are secured in position by nuts 116. Arubber sheet 118 is provided between the angle members 114 and adjacentplate 117 between ange 86 and the top plate 117. Vertical movement ofthe carrier plate in either direction is damped by the rubber sheets andis limited by the degree to which the sheets can be compressed.

Provision is also made in the engine mountings for restricting anddamping longitudinal movement of each carrier plate by means associatedwith each end thereof. An angular stop member has a base 118', securedon one end of bearing plate 98 and to the top flange of center sill 6 bybolt 120, and an upstanding abutment 119 parallel with flange 8 at theupper end of the carrier plate. Between the abutment 119 and ilange 88is arranged a resilient unit comprising a rubber sheet 122 between andbounded to plates 124. This resilient unit is secured between theabutment and ange 88 by bolts 125 and 126. Another angular stop memberhaving a base 128 having an upstanding abutment 130 is secured on anextension of bearing plate 98 and to the top of sill 6 by bolt 132.Wings 134 extend between the sides of the base member 128 and abutment130 and one of such wings contacts mounting plate 96. Another angularend stop member extends vertically inside of mounting plate 96 and oneflange 136 is parallel to such plate and another ange 138 is parallel toend plate 94 of the carrier plate. Flange 136 is secured to plate 96 bybolts 140. Between flange 138 and end plate 94 and between flanges 130and 88 are arranged resilient units comprised of kplates 142 andintermediate sheet rubber 144 bonded thereto, the units being secured insuch relation by bolts 145 and 146.

While the engine mounting just described comprises a mounting plate, acarrier plate, end resilient stop means and vertical movementrestriction means that are detachable, they can be assembled as aunitary structure for application to or removal from the center sillmember, and also for adjustment lengthwise on the sill. Upon removal ofbolts 92, 100, 120 and 132, the mounting units M can be shiftedlongitudinally to permit the associated engine leg 82 to freely passthereby in a vertical direction. To dismount the engines A and B, theyare jacked up with bolts 92 removed to permit longitudinal movement ofthe mountings into either engine receiving position or engine removalposition. During this operation, the locomotive is preferably locatedover a pit in which suitable jacks can be arranged for raising andlowering the main engine. The engines are mounted to float on rubber sothat operational vibration will be substantially damped withouttransmittal to the underframe.

The invention may be modified in various respects as will occur to thoseskilled in the art and the exclusive use of all modifications as comewithin the scope of the appended claims is contemplated.

What is claimed is:

1. A mounting for carrying an engine on a frame comprising a verticalcarrier plate with a top flange having one end turned down, a mountingplate parallel with the vertical carrier plate and having a bearingextension adapted to be detachably secured on the frame, rubber meansbetween and secured to said plates, an abutment adjacent said downturnedflange end adapted to be detachably secured on the frame, and rubbermeans secured to and between said abutment and said downturned endportion of the carrier iiange.

2. A mounting for carrying an engine on a frame member comprising avertically extending carrier plate having an engine bearer extendingfrom the inner face and an outwardly extending top ange, a mountingplate parallel to the carrier plate having an intermediate ontwardlyextending bearer adapted to be secured on top of the frame member,rubber means between and secured to said plates, a bracket secured tothe outer face of the mounting plate above the mounting plate bearer,and means associated with the top flange of the carrier plate and thebracket for snubbing vertical movement of said carrier plate.

3. A mounting for carrying an engine on a frame member comprising avertically extending carrier plate having an engine bearer on its innerface and an outwardly extending top ange, a mounting plate parallel withthe carrier plate having a bearer adapted to rest on and to be securedon said frame member, said mounting plate being spaced from said carrierplate top ange, rubber means between and secured to said plates forfloatingly supporting the carrier plate, a bracket on the mounting plateand resilient snubber means between the carrier plate and bracketresisting vertical movement of said carrier plate, the top of themounting plate serving as a stop for the carrier top flange in the eventof failure of the rubber means.

4. The combination of center sill frame members spaced to receive anengine therebetween, a plurality of similar mountings each comprising avertically extending carrier plate having an inwardly extending enginebearer, a mounting plate having a vertically extending portion parallelwith the carrier plate and an outwardly extending bearer slidablymounted on the center sill frame members, rubber means between andsecured to the parallel portions of the plates, detachable means forsecuring the mounting plate bearers to the sills, spacer means betweenthe vertical portions of the mounting plates and the adjacent centersill frame members and a guide rest secured to the bottom of the sillsfor receiving the bottom of the mounting plates and spacer means.

References Cited in the le of this patent UNITED STATES PATENTS1,608,856 Masury Nov. 30, 1926 1,871,708 Lea Aug. 16, 1932 1,872,768 LeeAug. 23, 1932 1,924,504 Lee Aug. 29, 1933 1,939,848 Haushalter Dec. 19,1933 2,144,848 Miller Jan. 24, 1939 2,257,804 Lord Oct. 7, 19412,359,941 Rosenzweig Oct. 10, 1944 FOREIGN PATENTS 975,207 France Oct.11, 1950 OTHER REFERENCES Serial No. 288,972, Julien et al. (A. P. C.),published May 25, 1943.

